Counting-head.



11. M. PILKIN-GTON.

COUNTING HEAD.

APPLICATION FILED JULY 28, 1911.'

Patented July 14, 19M

6 SHEETSSHEET 1.

. 4 BY I ATTORNEYS APPEAL; T10 TLLED JULY 28,193

wag/3 INVENTOR 6? 7 m BY ATTORNEYS WITNESSES:

w H; M. PILKINGTON.

- ooumme HEAD. APPLIGATION FILED JULY 28,1911.

Patented July 14,1914.

6 BHBBTS-SHEBT 3.

H'Mm.

v/ 1 0 w Mg WITNESSES-:1. I

INVE NTOR BY I flm iwa ATTORNEYS H;'M. PILKINGTON.

I COUNTING HEAD. APPLIOAITION FILED-'.TULY28,1911.

1,103,428. Patented July 14, 191

6 SHEETS-SHEET 4.

ATTORNEYS H. M. PILKINGTON.

COUNTING HEAD. APPLIOATION FILED JULY 28, 1911.

Patented July 14, 1914.

6 SHEETSSHEET 6.

l I l Ii iii, 1 i 1 I 21 Z: I z

\ H 1 J} .l 1 \\69 I V I I i LF" WITNESSES: INVENTOR fl ATToR EYS lJ and more particularly to counting heads for l the invention is especially useful for and head by means of which after an operating shaft has beenrotated a given number of positivelyarrested from further operation,

-TON, a citizen of the United States, and a One of'the. objects of my invention is to fromflfurther operation, and the counting predeterminednumber, of complete revolu- Still' another object of invention is to UNITE STAES PATENT FFIGE.

HERBERT lVI. PILKINGTON, OF ARVERNE, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- I/IENTS, TO TITLE GUARANTEE & TRUST COMPANY, TRUSTEE, OF NEW YORK, N. Y.

COUNTING-HEAD.

T 0 all whom it may concern Be it known that I, HERBERT M. FILKING- resident of Arverne, Long Island, county of Queens, and State of New York, have invented a certain new and useful Improvement in-Counting-Heads, of which the following is a'specification.

My invention, relates to counting heads counting revolutions of an operating shaft and for arresting the shaft from further movement after it has been rotated a .given number of revolutions.

My invention'is adapted to be used with a great variety of'machines in which some operating part is to be arrested from further movement}; after it has been rotated through a predetermined number of revolutions, or moved-through a predetermined number of cycles. of operation as the case.

may be, but, in the form herein illustrated is intended to be used inconnection with what is known as a step and repeat machine such as shown and described in my co-pending application Serial Flo-633,196, filed June 14, 1911 'in which machine a sensitized plate is provided'whichmustbe moved with great accuracy-step by step in front of a..projectu ing lens soasto properly position successive objects or designs tobe photographed upon said plate. 1

provide an 'efficient and durable counting revolutions it will be positively arrested mechanism reset to again arrest the shaft number of revolutions, and soon.

' Anotherobjectof the invention is to provide acountingheadby means of which a tions andfractions of a revolution of the shaft maybe :permitted and then the shaft andin whichthe partsmay be readily reset for a duplicate counting operation.

provide a'counting'head in which there is a device for count ng complete revolutions, and-another for measuring fractions of a Specification of Letters Patent.

Application filed July 28, 1911.

revolution, which may be automati- Patented July 14, 1914.

Serial no. 641,052.

1, showing the preferred form of the device for I counting complete revolutions and a part of themechanism for operating the same; Fig. 4 is atop plan'view of the apparatus shown in Fig. 1, with certain parts broken away and others in section to show different parts of the mechanism; Fig. 5 is an enlarged view of the mechanism for operating the. device for counting complete jrevolutions; Fig. 6 is a cross-sectional view taken on line 66 of Fig. 1, showing the stops for arresting the movement of the shaft at the completion of the predetermmed number of revolutions and fraction .of a revolution; Fig. 7 is a crosssectional view taken on line 77 of Fig. 1; Fig. 8 is a cross-sectional view taken on line 8-8 of Fig. 1, with certain parts broken away; Fig. 9 is a sectional view taken on line 99 of Fig. 1, showing the dial and pointer for indicating desired fractions of a revolution of the shaft; Fig. 10 is a front elevation of the apparatus of Fig. 1, showing the operating handle and the dials and pointers for indicating complete revolutions and fractions of'a revolution; and F ig. 11 shows a detail. 4

-Referring to the drawings (Figs. 1, 2 and 3), 1 is a shaft which is to be positively arrested at the expiration of a desired number of complete revolutions and a desired fraction of a revolution. The shaft extends through a back plate or support 2 bolted to any suitable part of the machine, and to this back plate is bolted or otherwise firmly se-' cured an annular shell or ring 3 having a front cover or face plate 4 rigidly secured thereto by screws 5, the face plate having gear teeth '6 cut thereon or a suitable gear wheel secured thereto as desired, while the annular shell or ring 3- is provided with inner gear teeth 7 which may be formed at a thickened portion of the ring as shown,

or may be made in a separate inner gear and secured to the ring as desired.

On the shaft 115 mounted a sleeve 8 having a spring pressed pointer 9 secured thereconnected to an open-supporting frame 14 which will be referred to as a device for measuring fractions of a revolution. This supporting frame is provided with a lug 15 which is adapted to engage with either of two fingers or stops 16 and 17. Finger 1(5is secured to the inner end of a sleeve 18, the

outer end of which is provided with a spring-pressed pointer 19 which is adapted to engage with'teeth 20 formed on a graduated dial 21 which in turn is secured to the outer end of' a sleeve 22 loosely mount ed on sleeve 18 and to the inner .end of which is secured the stop 17. I The sleeve 22 is normally held locked to'the shell 3 by means of a double sector 25 having teeth 26 formed'thereon to engage with the teeth 6 .formed on the'face plate 4.

hub 31 having a disk 32 with suitable teeth 'A short sleeve v27 is mounted on the shaft within'the-open frame 14 and is connected by a pin 28 to a rod 29 extending longitu dinally through the center of the shaft, the

pin 28 passing-through a slot 30 in the shaft so that the. rod 29 may move in and out to shift thesleeve 27 back and forth on the 1 shaft" .as hereinafter described. Rotatively mounted on this sleeve 27' there is a 33 'cut on the periphery thereof, which disk will be referred to as a device for counting complete revolutions of the shaftsince it'is intended to be'moved a given distance for each revolution of the shaft. At the other] end of the hub there provided a projecting'arm having a pin or lateral projection 34 adapted to. engage with the stop 10' which projects in its path of movement. Loosely mounted on the hub 31 there is a disk 35 which is secured from rotative movement with respect to the frame 14 by meansof two or more pins 36 which project laterally from frame 14 and extend loosely through suitable holes-in the disk. This disk is, connected with disk 32 by means of a spring 37 having its ends respectively secured' .to the disks. This spring '(in'the present form of my invention) is Wound so that its tendency isto rotate disk 32 in an anti-clockwise direction to hold pin 34 against stop 10 which determines the position of the disk 32.. The tension in the spring is su'liicient to force the pin against the stop 10 for any setting of pointer 9 or dial 12. p I

The disk 32 is operated from the shaft 1 by a cam or eccentric 38 keyed to the shaftat the. rear of the sleeve 27. This cam engages a roller 39 mounted at one end of a lever 40 pivoted upon an extension 41 of the frame or fraction-measuring device 14. This lever at its other end is provided with a ratchet pawl 42 having a tooth 43 engaging the teeth 33 of disk 32 soas to move the disk 'one step in a clockwise direction foreach revolution of the shaft and BCCGHiLl'lC.

The lever 40 is acted upon by-a spring 44 which is fastened at one end to the lateral projection 41 of the frame 14, and at its other end bears against the ratchet pawl lever 40, so as to hold it downin position against cam 38. Likewise, the pawl 42 is provided with a spring 45 which holds its tooth in engagement with theteeth of the disk 32. The disk 32 is held in its operated position against spring 37 by a ratchet dog 42 having a tocth 43 engaging the teeth 33 of the disk The front edges of the teeth 43 and 43' taper outward from; their Working edges, as shown in Fig.

5, so that they will readily slip into and'out of engagement with the teeth'33 and clear these teeth when disk 32 is'moved outward on the shaft and-restored through spring 37 p to its former position against its stop 10.

' Mounted on shaft 1 .at the rear of cam 38 there is a reciprocating member preferably in the form of a bolt 46 having a longitudinal slot 47 through which the shaft passes,

the slot being of such dimensions as to permit the bolt to reciprocate laterally with respect-to the shaft.- The lower end of the bolt extends-through a slot '48 in one end of the open frame.14,--and the bolt is provided at this end with one or more teeth 49 which normally engage with the inner teeth. 7 of shell 3 to lock the frame 14 to theshell. The upper end of the bolt is provided with a lateral projection 50 andawith a vertical extension 51 preferably in-the form of a pin which slidesloosely through an opening. in the other end of frame 14. A spiral spring 52 surrounds this boltand is confined between the adjacent end piece of frame- 14 and the lateral projection 50 of the bolt, and

normally holds the bolt in locking'engagement with the teeth 7. v

v After the shaft has been rotated the desired number of revolutions, it is necessary to permit the shaft to be moved through. the remaining predetermined fraction of a'revol.ution, and to then look it fromfurther movement in that direction. In the present formof my invention, I accomplish this by providing suitable means brought into operative relation with the operating mechanism of disk 32 at the completion of the pre determined number of revolutions of the I shaft, whereby said operating mechanism ofdisk 32 is rendered efi ective to lift the bolt mally held by a spring 54 against a stop '55 on the disk. This arm is provided witha head 56 which is brought in position under the lateral projection 50 of'bolt 4-6 just v prior to the completion of the last complete s revolution of the shaft, so that as the shaft completes its lastrevolution, the extreme outer surface of the'cam or eccentric 38 will force a seat 57 on the end of'lever 40 up against the head 56 of the lever, thus throwing the lever upward against its spring 5%, compressing spring 52 on the bolt and 1m locking the bolt from engagement with teeth 7. It will be seen that this head 56 will'be brought into position under the lateral projection of the bolt at the completion of the last of, any indicated number of revolutions, for, assuming that the dial 12 has a hundred teeth, and that it is desired to rotate the shaft say thirty revolutions, then the pointer 9 is moved in ananti-clockwise .35 direction thirty teeth from the zero or normal setting, thus movingstop 10 80/100 of an arc in an anti-clockwise direction, Whereupon spring 37 rotates disk 32 and with it arm 53 in an anti-clockwise direction until lateral pin 34 comes into'engagcment with the stop 10. At this position of the disk 32 it will take thirty revolutions of the shaft to move the disk 32 back into position to 4 bring head 56 under the edge of the lateral projection 50. Immediately upon the lifting of bolt 46 asdescribed, a'finger 58 projecting from the foam member is. gripped on either side by two spring-pressed dogs 59,

59, which are pivoted to the boltand provided: with" slots 60 60 through which pins 61, 61 extend and against which the (logs are outwardly pressed by springs 62, 62. By "means of this finger and the dogs, the

bolt and the frame let to which it is slid- .ingly connected,;are immediately locked to 'the'cam and shaftas soon as the bolt is withdrawn to release said frame or fraction- .measuring device from the teeth 7 of outer shell 3. The shaft now being locked to the released frame 14, itnay be rotated through theindicatedfraction of a revolution, at

" the end of which movement, lug 15 on frame 14 will'engage one or the other of fingers or stops 16 or 17 'a ccording to the direction of rotation of the shaft, and arrest the shaft from further movement in that direction. It will be observed that these two fingers are locked in position with respect to each other by means of the pointer 19 (which is in engagement with the teeth. 20 of fractional indicating dial 21; and that the sleeve on which thisdial is mounted is, in turn, locked to the duter shell 3 by means of the, teeth 26 on double sector 25 which are iii engagement with the teeth 6 on the face plate-1 of: said shell.

In using apparatus of this kind for oper-' ating step and repeat machines above resirable that asmuch of the mechanism as possible should becontrolledfrom the operating handle, and that the complete revolution-counting device and the-fraction-meas uring device should .be automatically reset at the completion of the predetermined. cycle of movements of the shaft. To accomplish 1 these purposes, I have constructed the operjating handle as followsz-The main grip 63 i of thehandle is secured to a bar 64 which is" keyed to the outer end of shaft 1 by keys 65, so that the shaft is rotated when the handle is turned, but may be moved in and out thereon. This bar is provided at each end i with legs 66, 67, which are secured by screws I 68, 68 to a disk 69 loosely mountedon sleeve vhich is pivoted a lever 71provided at its ing through an opening in the handle grip- 63, and having on its outer end a button The lever intermediate its ends and opposite the shaft, is provided with a seat 7d againstwhich the head of the central rod 29 is thrust by a helical spring 75 which sur- "rounds the head of the rod and is seated in :a recess in the end of the shaft 1. The lever 571 and rod 29 are shown in the position they:-

: upon the handle and is in the act: of turnmg the shaft to c ount the revolutions thereof. In this position the rod 29 is forced in lsleeve 27 and disk 32 in their inner position ito keep teeth 33 of the disk in engagement: with the ratchet teeth A3, 43; for, assoou- -as the operator removes his hand from the button 73, spring 7 5 will force rod 29 outshaft to disengage its teeth from the ratchet teeth whereupon spring 37- will return the disk to its former,- positi n against its'stop 10. In order to automatifraction-measuring device after each, count, they-are connected by means of asu'itable friction clutch and spring mechanism, to the my invention, this apparatus consistsof a friction disk 76 which is normally held in 22. This bar is' provided with a lug to other extremity with a push rod 72 extendward and, through pin 28 and sleeve 27, the disk 82 will be thrown outward on the 120 ferred to and for other purposes, it is dei fassume when the operator has his hand against spring 75 so as tohold the short 1 cally' advance the stops -16 and 17 of the. \i

disk 69, and in the present embodiment of".

disk by'means of an annular ring 77 held .in position on disk 69 by means of bolts 7 8,-

and held into frictional engagement with disk 76 by means ofsprings 79 surrounding said bolts; The friction disk is. provided with a sleeve or hub 80 which is loosely mounted on sleeve 22, and tothis hub are secured two oppositely wound spiral springs 81, 81. which have their outer ends secured to a pin 82 projectingfrom the double sec: tor and extending in the path of a suit- .able lug or stop 83 on the friction disk '76. By this arrangement, when 7 the operator turns handle 63 to rotate the shaft,'one or the other of the springs 81, 81, depending upon the direotionof rotation, will be put under tension during the first revolution of the handle, at the completion of which the stop 83 will strike the outer end of pin 82 and prevent further winding of the spring. This is for the purpose ofv winding up the spring 81- or 81, depending upon the direction 'of'rotation of the handle so that the spring will be under tension to automatically advance the stops 16 and 17 when the sector 25 is released at the completion of the first desired cycle of operations of the shaft so as to put the stops in position to permit 'the shaft to again be moved through the same exactfraction. of a revolution at the completion, for the second time, of the indicated number of complete revolutions. Two springs are used wound in opposite directions because the stops 16 and 17 which are locked togetherin their spaced condition, must be advanced in one or the other direction, depending upon the desired direction of rotation of the shaft, and there must be a spring for advancing the stops in either direction. desired. The slipping engagement of disk 76 between ring 77 and disk 69 will permit the continued rotation of the handle through thedesired number of revolutions indicated on the dial.

After the handle has been'rotated through the indicated number of complete revolutions and the indicatedfraction of a revolution, projection 15 on the fractionmeasuring frame .1 1 will have been moved I into engagement with stop 17, at which position the shaft will be positively arrested from further movement. If it 18 now desired to move the shaft through a similar is forced toward the handlebar 64 until'rod' 29 is removed down .upon its seat at"-'"tlie lower end of slot 30 in the shaft, so that the outer end of rod 29 becomes a fulcrumpoint for lever 71, and further exertion tending to bring the handle ,grip and button 73 together will pull handle bar 6 1 and disk 69 forward. The forward movement of the disk 69 will cause disk 76, sleeve 22 carrying sleeve 18 to slide forward on sleeve 13 against the force of a [spring 8t) which is located in a recess between a front flange 0n hub 86 of the face plate 1 and a rear flange of a short sleeve 87 mounted on sleeve '22 within thehub and held in position by the double sector 25 and a rear flange 88 of sleeve 87-. The outward movement of the double sector 25 disengages its teeth 26 from the teeth of the face plate, whereupon the spring 81 now under tension will rotate sleeves 22 and 18, which are locked together through the dial andpointer, in a clockwise direction until finger 16 is again brought of the fraction-measuring device 14 which was locked'to shell 3 when the disk32 was the operator now releases his grip on the handle, spring throws the, sleeves 22 and 1 8 inward, again bringing, the teeth of double sector 25 into engagement with the 16 and 17 in position. Since the fingers 16 tion of a revolution, the fingerv 17 will now bethat fraction of a revolution in advance of projection 15, so that the parts are now shaft. i i If the fingers 16 and 17 were not specially constructed, it would be impossible to accurately determine the fractions of a. revolution, since the thickness of the stops and the log 15 take up a certain distance along the path of rotation. To obviate this difficulty and to permit the measuring of any fraction of a complete revolution, I construct these jfingers as shown in Figs. 6 andll. There sists of a main'finger portion 89,,near the outerxend of which is pivoted a finger tip 90 which is free to move on its pivot 91 between pin stops 92 on each side' thereof, the movement of thefinger tip being just. sufiicient to permit the center line of" the projec tion 15 tocoincide with the center line of the pivoted finger tip. By this construction it is possible to accurately measure any fraction of a revolution in either direction of of a revolution is desired, the stops will rest the double sector 25 and the dial 21, and the into engagement wit-h theprojecting lu 15 disengaged from its ratchet mechanism. If i teeth of the face plate 4 to lock the stopsand' 17 are spaced apart the indicated frac set for a second duplicate operation of the rotation, no matter how near zero or the it will be seen that each of the fingersconi the finger-when said projection rests against one exactlyover the other with the projectioir 1 5 projecting between thepivoted fingertips 90,;eac'h of whichis tilted aside on 1 It-S pivot so that the pr'ojectionlfi rests on the cent eriline of the overlapping stops.

hen the movement of the shaft includes a fraction of a revolution, the fingers 16 and 17 actfas stops to prevent further rotation of disk 32 relativeto the shaft after the shaft has-been moved the desired number of complete revolutions, since at this time the dislg through ratchet mechanism 42'- 10, frame lt boltfi, dogs 59,59 and finger 58,

is posit-ivelyconnected to the shaft. 0n the other hand,when the movement of the shaft does not includea fraction ofa revolution,

' i, the pfingers: .:l6, and 17 act, upon the completion of the indicated number of complete revolutioIis aslstops to prevent further rotation of the shaftj'and connecting devices, since the stops at the zero setting would overlap each other iwith'lug of frame 14 held firmly bet-ween,their pivoted' tips, thus preventing vany movement of frame let to which the shaft and counting-disk are positively locked when the bolt v lfiis'thrown. 3 An importantifeatur'e of my invention is that of providing such apparatus for operatingtl' e disk '32 as jwill rot-ate the disk given-distance for a given number of rota-' tio'ns o'f the shaft in Ieit-her direction, but will" not permit the movement of the disk throughthis givendistance except by a com- 1, plete rotationof" the shaft. In the particular form of apparatus shown, in which the disk is inoved one tooth for each revolution ofthe shaft, and in whichI have utilized a cam and; ratchet ,mechanism for accomplishing this result, the "eccentric must move 40 the" ratchet-leve1 up and down to advance the disk one tooth, and-anything less than a complete-rotationy-of the shaft in either direetionwillfail to move the pawl tooth into engagement with the next preceding tooth of the disk, so that the shaft must always be 4 moved. a complete revolut'ion to move the disk one toothyand"- this is true even whenthe rotations are success ve ones in opposite directions, In the usual form of snail gearing for-driving. a wheel one step for each "revolution of another .wheel which has but one tooth, if the single toothed wheel be mo ved one revolution so that its tooth engages. one of the teeth ofthe larger wheel and. has moved it one step, then the single tooth willibe in a position just beyond the teeth of the large-wheel, and if new -the shaft carrying the single. toothed wheel is 1'0:-

tated in the opposite direction, the single tooth will again-engage the teeth of the'llarge wheel and mo'veit a step in thejiopp'osite di-f. rection, althoughthe shaft has passed but through. a verysmallfraction of a revolution. By the above described apparatus for operating the disk 32, this difiiculty is obviated. i

In the present form of my invention, dials 12, and 21, the face plate ithe disk 32 and the shell 3 are each formed with a hundred teeth so that if it is desired to turn the shaft ten revolutions and 20/100 of a revolution, the finger J of the complete revolution index dial is moved in an anti-clockwise direction ten teeth away from the zero position; and the finger 19 andythe fract1on-1nd1cat1ng riage adapted to'support a'sensitized plate which is to bemoved by successive steps of say two and two one-hundredth in'cheseach past aprojecting lens, thejthr'eadson the" shaft and nut being ten to the inch, and each of the gears of the counting head. having one hundred teeth as above-explained If it' is dial 21 are separated twenty teeth, in the desired to set the-counting head so'as to per- @mitthe carriage to be moved by successive steps of two and two -'one-hundredths of an 1 inch the pointer 9 is moved in an anti-clockwise direction twenty divisions on teeth from the zero point, and the-dial 21 is moved twenty points in a clockwise direction from pointen19 so as to separatestops'ltiand 17 twenty one-hundredths. of a revolutioni If now. the operator grasps handle 63 and presses button 73 sufliciently to force rod 29 down'upon its seat at the bottom. of

slot 30, the counting disk 32, "through pin 28 and sleeve 27, is thrust 'inWhlTd 0n the shaft so as to bring the ratchet teeth 43 and 48" into mesh with the teeth 33 of the disk. At this stage of the operation pin 34 'is held against stop 10 by the. spring 37, and this stop .is rigidly locked with the measuring frame lit through the dial 11 and pointer 9, the measuring frame in turn being locked to the inner ring 3 by bolt {L6, and the stops 16 and 17 are locked from' movement by the teethvof the double sector 25 engaging'with the teeth of the face plate 4:. If the operator now turns the handle in a clockwise direcion, each rotation of cam 38 will raise and ower the ratchet lever 41,0 so asto advance disk 32 one tooth for each revolution of the shaft, the disk being retained in'its advance Y position by the ratchetdog 42 (Fig. The disk 32 cont nues to advance toward its 2O r is nowrigidly; looked through this finger normal position with respect to frame 14 for each revolution of the cam until at the completioncf the last indicated revolution, in

this cascfthe twentieth revolution, the disk will have moved into position to bring-head 56 under the lateral projection 50 of bolt 10,'

at which time the outer surface of the cam 38 will come into position to bear on roller of ratchet lever -10, and thus force seat T57 against-the head 56 of level- 58, forcln it against the lateral projection. 50 until when theextreme outer edge of the cam has reached thepposition shown in Fig. 2, the

. bolt lo'ha's been withdrawn from engagement withliteetli 7 of ring 3, immediately upon the happening of which the pivoted I dog 59f clicks into position behind finger 58,

thusIOcking thefinger between the dogs 59 and 59'; This finger being integral with the pawls to the'disk'aa, all of these-parts arecam- ,which is keyed to theshaft, the shaftand thesedogsto thelbolt, which in'turn is rigidly connected-to the measuring frame 14 as regardsrotative movement, and since this.

frame,-,.is connected through the ratchet rigidly; locked'together from relative rota- -tion', but the' bolt 46 being withdrawn from 3.0. t 'Ttion-115fpnthe measuring frame 14 engages lsto' il'i'tat' the 'completion of which movetion: th-the: operator now releases the the teeth,"the shaft-with all ofthese parts is' 'free to oontimntg its "rotation until proj ecment' -the. 'sl1aift will have been rotated throughjfthe {number of indicated revolutions and-the indicated fraction of a revolu;

l weight of his hand from button 7 3,- spring 32 "out o" engagement with its ratchet teethwhereupon spring 37'. will rotate "the disk 32' 75 will= throw rod 29 forward which, 1nf28 'and'sleeve 27 will move disk in an anti-clockwise direction until the stop 7 v pin" 3 i comes into engagement with stop.10,

thesettingof which is unchanged with re-' althbu h'fthis measur ng frame and the dial spect-tothemeasuring frame 14 and dial 12,

; asga j' oleahavelbeen moveda'to a different measuring name 15L t-is" posl'tively locked- "from rotation, andthe'dogs59, 59, moving" down with the bolt, leavethe shaftand cam 38 free to rotate, The operator after re-; lea's'ing disk 32 andilocking the frame'l i'in' this" manheryjfnow"presses button 73- and I haiidlegripfi3 together in the manner heretofor'e described soIas-"todraw disk 69', and

, with it sleeves22hnd-l85-forward against the thrust of'spring so as to disengage the double sector from the teeth on face plate 4, whereupon the "spring 81, acting through double sector'25 and sleeves 22 and 18 which rotates fingersor stops 16 and 17 in a clock- "wise direction until the rear stop 16 is brought up-"against theprojection' 15 ofthe measuring frame 14, at which time the finger 17 will be the indicated fraction of a as to permit the. measuring frameto be operator nowreleases his grip,-spring '85 will force the teeth of the double sector into engagement with the teeth of the face plate newly set positiom and the parts are ,now

the shaft will be positively arrestedns it formerly was; and'the parts may again be set in the manner described, and so on, for

return it by-similar steps, the operator will not release the double sector 25 to advance the stops 1G and 17, since the will be against the finger 17 an pletion of the "desired number of anti-clockframe 11- will be rotated; in an, anti-clockinto engagement with stop *16, whereupon" it .willbe. arrested from further movement fraction of a revolution. 7

its operation in 'connection with a step andrepeat machine, I do not wish to be understood as limiting the inv'entiona-feov any particular. construction 3 and arrangement of ed claims, nor do.;I wish it to he limited to its use withany'pa'rticular kind-bf machine of its broader *fieaturesjtheinvention; is useit is desired toperm-iba certain'number of complete revolutions, -or complete vrevolutions and 'a fraction of a revolution of. the shaft, or, in some cases ta certain fraction of a revolution'only, afterwhich the shaft is arrestedfromfurther movement. 1 l? Letters Piitenty-is v 1.'*I'n iii-[counting of a shaft the' revolutions (if Which are to sired numbers "of revolutions of the gshaft,

a counting device for counting revolutions again moved through saidfraction. If the 4, thus locking the stops 16 and 17 in their set and ready f'o-r a second duplicate opera- 'tion of the shaft at 'theexpiration of which grojection 15 at the comwise rotations of the shaft themeasuring and willuh'ave' moved through the-indicated "While I l1ave.'shown.-and described my apparatus inwhat'l believe to bethe best form now known to me; and have explained parts other than as indicated the append all or apparatus," s'inceit is obvious that insome ful in c'ofnnectionwith any machine iniwhich are locked together by the dial and pointer,

, revolution in advanceof said projection so.

any desired number of steps of the-carriage. If the carriage'has been moved to one of. its extreme positions, and it is desired to a wise direction until the projection 15 comes .120 --'.-Having now fully descrlbedmy invention, what I cla mas new and desire to secure .by 1

head, the eombination I be counted; meansffor indicating the de-- of the shaft normally disconnected from the shaft, means for moving said device a given distance for each revolution of the shaft, means connectingthe counting device and the shaft at the completion of a predetermined number of revolutions of the shaft, means movable into position at the completion of a predetermined number of'revolutions of the shaft to effect said connection, and means for disconnecting the counting device from the shaft.

2. In a counting'head, the combination of a shaft the revolutions of which are to be counted, means for indicating the desired numbers of revolutions of the shaft, a counting device for counting revolutions of the shaft normally disconnected from the shaft,

means for moving said-device a given dis-' tance for each revolution of the shaft, means connecting the counting device and the shaft at the completionof a predetermined number of revolutionsof the shaft, means movable into position at the completion of a predetermined number of revolutions of the I shaft to effect said connection, means for disconnecting the counting device from the shaft, and means for restoring'the count ing device to its normal position; A

3. In a counting head, the combinaticns' of a shaft therevolutions of which are to be counted, means for indicating desired numbers of revolutions of the shaft, an adjustable stop movable to different posi-- tions corresponding to the desired number: of revolutions, means for holding the stop at said position, a I'OtELtELblGIHGIDbGI movable with respect to the stop," means 0perated by the shaft for moving said rotatnumbers ofrevolutions of theshaft, an ad- 'justable stop movable to different positions corresponding to the desired number of rev olutions, a rotatable member movable with respect to the stop, means acting to move said rotatable member into engagement with the stop, means operated by the shaft for moving said rotatable member away from the stop equal distances for equal numbers of revolutions of the 'shaft, and means for arresting the shaft at the 'completion of the desired number of revolu-v tions. I

In a counting .head, the combination of a shaft the revolutions of which are to be counted, means for indicating des red numbers of revolutions of the shaft, anadj ustable stop movable to different positions ing member equal distances forequal num- .40

' corresponding to the desired number of revolutions, means for holding the stop at its different positions, a movable member having a part operatively related to the stop to engage therewith, means operated from the shaft for moving said movable member dista ces proportional to the number of revolutions of the shaft, means for disengaging said'movable member from its said op-' erating means, and means for restoring said movable member when so disengaged, to its former position relative to the stop.

6. In a counting head, the combination of a shaft therevolutions of which are to be counted, a device rotatable with respect to the shaft for counting theqrevolutions of the shaft, meansoperated by the shaft for moving said device a definite distance for each revolution of the shaft, means for locking the counting device to the shaft at the completion of the desirednumber of revolutions of the shaft to rotate therewith, and an adjustable stop'for arresting I the movement of the shaft and counting'de vice.

7. In a counting head, the combination of a shaft the revolutions of which. are to be counted, means for indicating desired numbers of revolutions of the shaft, a de vice rotatable with respect to the shaft for counting the revolutions thereof, means operated by the shaft for moving said dev ce, -means for locking the counting dewoe to the shaft at the completion of the .desired number of revolutions thereof to rotate therewith, a stop for arresting the movementof the shaft and counting device,

lOO

and means for automatically restoring the counting device to its normal position.

8. In a counting head, the combination of a shaft the revolutions of which are to be counted, a device rotatable .with respect to the shaft for counting the revolutions of the shaft, means operated by the shaft for'moving said device a definite distance for each revolutionof the shaft, means for i locking the counting device'to the shaft at the completion of the desired number of revolutions of the shaft to rotate therewith,- an adjustablestop for arresting the'movement'of the shaft and counting device, means for disconnecting said counting device from the shaft, and means for automatically restoring -theacounting evice, when disconnected, to its normal position.

9. In a counting head, the combination of a shaft the revolutions of which are to be;

counted, means for indicating desired numbers of revolutions of the shaft, a device for counting the revolutions of-the shaft, means for moving said device operated when the shaft is rotated, means for arresting the movement of the counting device at the completion of the desired number of revolutions of the shaft, means for restoring the therefrom, means rigidly connecting the counting device and shaft at thecompletion of the desired number of revolutions of the shaft, means for arresting the movement of the counting device and shaft,.and.means controlled from the operating handle ,for

disconnecting said counting device from the shaft.

11. In a counting head, the combination 'of a shaft the revolutions of which are to be counted,a handlefor operating the shaft means for indicat ng des red numbers of revolutions of the shaft, a device for counting the revolutions of the shaft, means op-- 'eratively connecting the counting device with the shaft to drive the counting device therefrom, means for arresting the movement of' the counting device at the completion of 'the desired numberof revolutions thereof, means controlled from the operating handle 'for disengaging said counting device from its driving connections, and means for restoring the counting device to its normal position after it has been di sen-' gaged fromits driving connections.

12. In a counting head, the combination I of a shaft the revolutions of whichare to be counted, a handle for operating the shaft,

. means for indicating desired numbers of revolutions of the shaft, an adjustable stop movable to different positions correspond ing to the desired number ofreVolutions, means for holding the stop at its different positions, a movable member having a part operatively related to' the stop to engage therewith, means operated from the shaft'to move said memberdistancesproportional to the number of revolutions of the shaft, means actuated from the operating handle for disengaging said movablemember from its operating connections, and means for re-.

storing saidmovable member to its former position relative to the stop after it has been disengaged from its operating connections.

13. In a counting head, the combination of a shaft'the; revolutions of which are to be counted, a device rotatable relative to the shaft and operatively related thereto, means "operated by the shaft for moving said rotatable device a given-distance for eachrevolution'of the shaft and in a given directionfor eitherdirection of rotation of the shaft, and

means for arresting the movement of the rotalable device after the shaft hasfbeen turned a predetermined number of revolutions.

14:. In a counting head, the combinationof a shaft the revolutions of which are to be counted, ,a rotatable device normally disconnected from theishaft and operatively re-' lated thereto, means operated by the shaft for moving saidrotatable device a given distance for each revolution of th e shaft and in a given direction for either direction of rotation of the shaft, means locking then-otatable device to the shaft after the shaft has been rotated a predetermined number of vrevolutions, means for arresting the move- .ment of the shaft and said rotatable device,

meansvfor disconnecting said rotatable de-- vice from the shaft, andmeans for restoring the rotatable device to its normal position ;When disconnected.

15. In a counting head the combination ,of a shaft the revolutions of which are to be counted, a handle for rotating the shaft, a counting device rotatable with respect to the,

shaft and' operatively connected thereto,

means operated by the shaft for; moving,{ said counting device a given distancevfor leach revolution of the shaft-and in a given; direction for either direction of rotation ofthe shaft, means for arresting the movement ;ofthe counting device after the shaft has been rotated a predetermined number of revolutions, means actuated from said handie for disengaging said rotative part from 'ltS driving means, and asprmg-for restoring the r'otative part to its normal osition.

16. In a. counting head, thecom ination of a shaft the revolutions of which are to be counted, a rotatable "deviceioperatively connected to-"the shaft, means including a cam and ratchet mechanism for moving said rotatable device a given distance inone di-t rection for each rotation of the shaft'in either direction,,means locking the shaft and cam to the rotatable device when the latterhas been moved a predetermineddistance, means for disengagingthe rotatable iio device from the ratchet. mechanism, and 7 means for restoring said rotatable device to its former position with respect'to'its'stop.

l7. 'In'a' counting head the combinationof a shaft the revolutionsof which are to be counted, a device for countingcomplete reva- .olutions of the shaft, a devio'epfor measurfi j ing fractions of a revolution "of the shaft,

means for driving the revolution counter by the shaft, means locking the fraction measu-rim' g; device to the shaft after the shaft has-beenturned through the desired number of complete-revolutions, and an ad'u'stablesto'p' for li'mitingth'e "movement 0 the measuring-device. and shaft after they have been turned throu'gh the desired fraction of arevolution; I

18. In a counting head, the combination of a shaft the revolutions of which'a're to I be counted, a device rotatable with respect to the shaft for counting complete revoluztions thereof, means for driving the revolu-v t-ion counter from the shaft, a device for measuring fractions of a revolution of the ashaft, means for holding the fract1on-meas--v uring device normally statlonary, means opthe shaft when the measuring device is released, and an adjustable stop for limiting thezmovement of the shaft and-said devices after they have been moved through a predetermined fraction of a revolution.

W 19, In a counting head, tl1ec'0mbination of a shaft the revolutions of which are to be counted, a device rotatable with respect measuring device, means locking the count ing device and-the measuring device to the shaft when the measuring device is released,

I an adjustable fstop for limiting the move ment ofthe shaft and said device after they have been moved through a predetermined fraction of a revolution, means for disconnecting the counting device from theshaft, and means for restoring it to its normalyposition when released.- Y

20. In a countinghead the combination of ,-a shaft the revolutions of which are to be counted, a device operative y connected with the shaft for counting complete revolutions thereof, adevice for measuring fractions of EL IEYOlUlZIOILQf the shaft, means for driving the revolution, counter from the shaft, means operatively related-to the driv-- .ing means for. lockingthe fraction measur- ,ing device to the shaft after the shaft has been turned the desired number of complete revolutions, an adjustable stop for arresting Jthemovement of the counter, measuring de vice and shaft, and means for disconnecting the complete revolution counter v from the 5,,21. :In a'counting headthe combination of a shaft the revolutions of which. are to be counted, a handle foroperating said shaft,

- adevicc' operatively connected with the shaft .forlcounting complete revolutions thereof,

device for measuring fractions ofa' revolution of the shaft, means for driving the revolution counterwfrom the shaft, means locking the fraction measuring device" to. the

after the shaft has been turned the desired numbcrof complete revolutions, an."

adjustable stop for arresting the movement of the countlng and measuring devices and shaft, and means for disconnecting therevolution countingdevice and fraction measuring device from the shaft. 1

22. Ina counting head the combination 'of a shaft the revolutions of whichare to be a revolution of the shaft, means for-driving the revolution counter from the shaft, means operatively related to the driving means for locking the fraction measuring device to the shaft after the shaft has been turned the desired numbero'f'complete revolutions, an adjustable stop for arresting the movement of the counting and measuring devices and shaft, means for disconnecting therevolu tion counting device and fraction measuring device from the shaft, and a spring for restoring the counting device to its normal position. I

23. In a counting head, the combination of a shaft the revolutions ofwhiohga're to be counted, apparatus for indicating the desired number of complet'er-revolutions-of the shaft including a dial and a pointer asindicating-members, means for holding the dial and pointer together at different rela-- tive positions, a normally stationary fraction-measuring device'c'onnected to one of the indicating members to move therewith, an adjustable stop connected with-the other indicating member tomovetherewith, a ro- ,tatable counting device operativelyconnected with the shaft to be 'ro-tatedia given distance for each; revolutiontheroffmeans tending to move said countihgu'device into engagement with the stop-, ratchet mechanism pivoted on the measuring:device and operatively engag ng the counting devlce to move said'countin device away from thestop, a cam-rotata ly driven by ithe shaft and'actuating the ratchet mecham'snnmeans moved with the-countingdevice and operatively related to the cam for releasing the nor:

mally stationary: measurlng device when the countingidevicehas been moved a predetermined-distance, means locking the shaft and cam to themeasuring device when'the latter is released, ands,anadjustable; stop for arresting the movement of;the. shaft, cam and measuring device after 5 theyhave been moved through a predetermined fraction of;

arevolution.

24-, In. a counting" head, the combination 'of a shaft therevolutions of which are toabe counted, a graduated dial and a pointer for. indicating theedesired number of revolutions of the shaft, means for holding thedial and pointer together atdifferent relative positions, a normally stationary fraction 'measurlng device connected to. the: dlal and movable therewith, a adjustable step connect counting device and operatively :related to the cam for releasing the normally stationresting themov'ement of the shaft, cam and ary measuring device when the counting device has been moved a predetermined number of revolutions, means locking the shaft and cam to the measuring device when the latter is released, an adjustable stop for armeasuring device j after they have been 1noved through a predetermined fraction of a revolution, means .for releasing the countlng device .'-from' the' ratchet mecha .nism, and meansfor movingsaid counting leased.

device against the first stop when .50 re-'- '25. Ina counting,head,-the'combination of a shaft the'revolutions 0f Wl1l0h are to be T counted,a-dial anda 'pointerada ted to be {locked at diiferent ositions relative to the dial for indicating of the shaft, fa pairjfof stops "operati-vely cti'onsgof a revolution connected with itherdialand pointer to be '1' "fset fapart atdistances .corresponding' to the i Y setting of thedial and pointer, a rotatable. but normally stationary -.m,easuring' device the=rotation -;ofg which is'limited by-said' -'stops,"nieans normally locking said measurin'g-device= stationary, a devicefor counting complete revolutions of the shaft, means for frnovmg{said device a predetermined -distance for-each revolution of the shaft, means opaeratively relatedto the counting device for efleotin the release of-said measuring de vice w en the counting device "has been fo'r locking said measuring device to the "shaft whenreleased;

' 26.- In acountni the dial for indicating fractions, of: a revoglut-ion of'the sliaft, a pair ofrjelatively fnov able stops op ratively connected with-f the d'ialand pointer to be set/apart at distances corresponding tothe setting ofthe pointer and dial, a device rotatable'withre'spec life the shaft for counting complete revolutionsthereof, a rotatablebut normally stationary, device the movements of which: arezlimitedby said stops, ratchet mechanism pivotall'y mounted on said normally stationarydevice and operatively engaging the' revolution counting device," a cam positivelyf 'con I nected to the shaft for operating',;th e o'f a' revolution," means including a handle moved a predetermined distance,- and means head the: combination of a shaft the revolutions of'whichare to be counted, a dial'and a pointer adapted to. be locked-at different positions relative zto vice to 'the foam and sha' 'lic'ating mechanism including a vdial and a pointerioperatively rela'tedto the dialffor ratchet mechanism, a bolt on the norand normally locking said device from rotation, means brought into position when said revolution counter has been movedIa predetermined distance for rendering the cam operative to move said bolt to release said normally stationary device, and means on said bolt for locking said last device to the cam when released.

of a shaft the revolutions of which are'to be counted a device rotatably mounted on the shaft or counting complete revolutions thereof, a cam mounted on the shaft, means operatedby the-cam for rotating saidcountof arevolution of the shaft alsorotatably mounted thereon, means normally locking said measuring device against rotation, means moved unto operative relation with mal'ly stationary device operated by the cam 315' '27. Ina countinghead,.the combination .ing device, a'device for measuring fractions the cam at the expiration of a predeter-' mined number of revolutions of the shaftto, render the cam operative to move the locking'device to unlock said measurin device, means connected to the normal 'ng device for locking said measuring device to the cam-when released, mechanism for indicating fractions of a revolution of the shaft ineluding a dial and a pointer operatively related to the dial, an adjustable stop connected with the indicat-in "mechanism for limiting the movement 0 said measuring i device and shaft when moved through the indicated fraction of a revolution, means for releasing the revolution counting device from its operating mechanism, and means for restoring said counting device to its normal position.

28. In a counting head, the combination "of-a shaft the revolutions of which are to be counted, a" device rotatably mounted on the shaft for counting completerevolutions thereof, acam mountedon the shaft, me ans operated by the cam' for rotating said counting device, a device for measuring fractions of a revolutionof the shaft also rot-atively mounted thereon, means including a part mounted on the measuring device for normallylocking said measur ng device against rotation means moved into operative rela-- tion wit the .cam at the expiration "of a pre determined number of revolutionsof the shaft to renderthe cam o erative to move the lockin'g device toimloc said measuring device, meansforlocking said measurin' deindicating fractions-of a revolution "of, the

when release in- 4 -sha f t ,'an adjustable stop'c'onnected with the a indicating mechanism for'limiting' the move me'nt'fof .said' measuring'device and shaft when moved through the'indicated fraction.

lever and a rod for releasing the revolution counting device from its operative mechanism, and means for restoring said counting device to its normal position.

-29. In a counting head, the combination of ashaft the revolutions of which are to becounted, a rotatable device for counting complete revolutions of the shaft, means opplete revolutions of the shaft, said sleeves at one end being connected one to the dial and one to the indicator and atgtheir other end being connected one to the stop and the other to the device for measuring-fractions of a revolution, a pair of relatively adjustable stops for arresting the movement of said shaft and measuring device when .moved through the indicated fraction, a second graduated dial and an indicator operatively related thereto for indicating fractions of a revolution of the shaft, a second pair of sleeves rotatably mounted upon the outer one of the first pair, said outer pair of sleeves at one end being connected one to the fraction indicating dial and one to its indicator and at their other end being connected one to each of the stops for. the fraction measuring device.

30. In a counting head, the combination of a shaft, the revolutions of which are to be counted, a handle for operating the shaft, adevice rotatablymounted concentric with the shaft for counting complete revolutions thereof, means for operating said device from the shaft, a stop for determining the position of said counting device, a device for measuring fractions of a revolution'of the shaft, means for locking said measuring device with the shaft at the expiration of a predetermined number of revolutions of the shaft, a pair of sleeves rotatably mounted on the shaft, a graduated dial and an indicator ope'rzitivelyrelated thereto to indicate complete revolutions of the shaft, the Sleeves at one end being connected one to the dial and one to the indicator and at their other end being connected one to the stop and the other to the device for measuring fractions of a revolution, a graduated dial and an indicator operatively related thereto for indicating fractions of a revolution of I the shaft, a pair of relatively adjustable stops for arrestin the movement of said shaft and measuring device when moved through the indicated fraction, a second pair of sleeves rotatably mounted upon the outer of the first pair, said outer pair of sleeves at one end being connected one to the fraction indicating dial and one to the indicator and at their other end being connected one to each of the stops for the fraction measuring device, and means including a rod passing through the shaft and connected with the revolution counter and controlled from the handle for releasing said counter from its-operating mechanism.

31. In a counting head, the combination of a shaft, the revolutions of which are to be counted, a handle for operating the shaft, a device rotatably mounted concentric with the shaft for counting complete revolutions thereof, means for operating said device from ,the shaft, a stop for determining the position of said counting device, a device for measuring fractions of a revolution of the shaft, means for locking saidmeasuring and counting devices with the shaft at the expiration of a predetermined number of revolutions of the shaft, a pair of sleeves rotatably mounted 'on the shaft,-a graduated dial and an indicator operatively related thereto to-indicate complete revolutions of.

the shaft, the sleeves at one end being connected one-to the dial and one to the indicator and at their other end being connected one to the stop and the other to the device for measuring fractions of a revolution, .a graduated dial and an indicator operatively related thereto for indicating fractions of a revolution of the shaft, a pair of relatively adjustable stops for arresting the movement of said shaft and counting and measuring devices after they have been moved through the indicated fraction, a second pair of sleeves rotatably mounted upon the outer of the'first pair, said outer pair of sleeves at one end being connected'to the fraction indicating dial and the other to the indicator and at their other end being connected one to each of the stops for the fraction measuring device, means including a rod passing (through the shaft and connected with the revolution counter for disengaging the same from its operating mechanism, means operated from the handle for operatively controlling said rod, and means for restoring the counting device to its normal position relative to its stop when the rod is operated to release it.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

HERBERT M. PILK I NGTON. Witnesses SAMUEL M. WARD, Jr., f EDWIN SEGER. 

